I really appreciate your offer of mailing this lamp. To save you the hassel, I did try to find this lamp at area stores and electrical businesses and nobody carries it (guess you might have already known that). As a matter of fact, I was able to educate everyone I spoke with because nobody (even electricians) knew that GE made a sodium bulb that could be used in a mercury fixture. They were also very appreciative.
You are not only smarter than most, but also very nice.